When MarionetteDriver is launched it's print log statement for each and every operation.Like
1465882610065 Marionette TRACE conn0 -> [0,138,"executeScript",{"args":[],"newSandbox":false,"script":"return Math.max(document.body.scrollHeight, document.documentElement.scrollHeight,document.body.offsetHeight, document.documentElement.offsetHeight,document.body.clientHeight, document.documentElement.clientHeight);","scriptTimeout":null,"specialPowers":false}]
1465882610066 Marionette TRACE conn0 <- [1,138,null,{"value":895}]
1465882610070 Marionette TRACE conn0 -> [0,139,"executeScript",{"args":[],"newSandbox":false,"script":"window.devicePixelRatio = window.devicePixelRatio || window.screen.deviceXDPI / window.screen.logicalXDPI; var pr = window.devicePixelRatio; if (pr != undefined && pr != null) return pr; else return 1.0;","scriptTimeout":null,"specialPowers":false}]
1465882610071 Marionette TRACE conn0 <- [1,139,null,{"value":1}]
1465882610319 Marionette TRACE conn0 -> [0,140,"findElements",{"using":"css selector","value":".logOut"}]
1465882610321 Marionette TRACE conn0 <- [1,140,null,[{"element-6066-11e4-a52e-4f735466cecf":"f9d9adc3-58df-446a-953d-eb793ac27025","ELEMENT":"f9d9adc3-58df-446a-953d-eb793ac27025"}]]
1465882610325 Marionette TRACE conn0 -> [0,141,"isElementDisplayed",{"id":"f9d9adc3-58df-446a-953d-eb793ac27025"}]
1465882610335 Marionette TRACE conn0 <- [1,141,null,{"value":true}]
1465882610338 Marionette TRACE conn0 -> [0,142,"isElementEnabled",{"id":"f9d9adc3-58df-446a-953d-eb793ac27025"}]
1465882610340 Marionette TRACE conn0 <- [1,142,null,{"value":true}]
1465882610343 Marionette TRACE conn0 -> [0,143,"clickElement",{"id":"f9d9adc3-58df-446a-953d-eb793ac27025"}]
1465882610372 Marionette TRACE conn0 <- [1,143,null,{}]
1465882610398 Marionette TRACE conn0 -> [0,144,"quitApplication",{"flags":["eForceQuit"]}]
1465882610399 Marionette TRACE conn0 <- [1,144,null,{}]
1465882610404 addons.xpi DEBUG Calling bootstrap method shutdown on @spritzfirefox version 4.1.5b
1465882610415 addons.xpi DEBUG Calling bootstrap method shutdown on e10srollout@mozilla.org version 1.0
1465882610416 addons.xpi DEBUG Calling bootstrap method shutdown on firefox@getpocket.com version 1.0.2
1465882610416 addons.xpi DEBUG Calling bootstrap method shutdown on loop@mozilla.org version 1.3.2
And I'm launching the MarionetteDriver by
System.setProperty("webdriver.gecko.driver", "geckodriver.exe");
WebDriver driver = new MarionetteDriver();
Is there any capabilities to disable the logs
Firefox is supposed to have an option to set the logging level for Marionette in the about:config property marionette.logging, but this apparently is not present in builds up to and including 47.
Apparently Marionette is not officially supported in build 47, which is unfortunate because FirefoxDriver also no longer works on this build either. Currently the only supported options are to downgrade (and use FirefoxDriver) or wait for updates.
It is theorized that this will be fixed in 47.0.1 or 48 and might already be in the nightlies.
Michael Medina
You can use the following lines of code to not display the marionette logs:
System.setProperty("webdriver.gecko.driver","src/main/resources/drivers/geckodriver.exe");
System.setProperty(FirefoxDriver.SystemProperty.DRIVER_USE_MARIONETTE,"true");
System.setProperty(FirefoxDriver.SystemProperty.BROWSER_LOGFILE,"/dev/null");
return new FirefoxDriver();
Here are all the ways I've seen to do it online, the only part that seems to do ANYTHING AT ALL is setting the browser log file to /dev/null :(
// ----------- BEGIN NIGHTMARISH AMOUNT OF CODE TO SET THE LOG LEVEL ------------
boolean detailedLogs = false;
File profileDirectory = new File(Settings.FireFoxProfilePath);
System.setProperty("webdriver.gecko.driver", "Drivers/geckodriver-linux64");
//System.setProperty("webdriver.gecko.driver","src/main/resources/drivers/geckodriver.exe");
if (!detailedLogs) {
System.setProperty(FirefoxDriver.SystemProperty.DRIVER_USE_MARIONETTE, "true");
System.setProperty(FirefoxDriver.SystemProperty.BROWSER_LOGFILE, "/dev/null");
}
FirefoxProfile profile = null;
FirefoxOptions options = new FirefoxOptions();
if (profileDirectory.exists()) {
profile = new FirefoxProfile(profileDirectory);
profile.setPreference("marionette.log.level", detailedLogs?"trace":"warn");
profile.setPreference("marionette.logging", detailedLogs);
options.setProfile(profile);
}
options.setLogLevel(FirefoxDriverLogLevel.WARN);
LoggingPreferences logs = new LoggingPreferences();
logs.enable(LogType.BROWSER, detailedLogs? Level.ALL : Level.WARNING);
logs.enable(LogType.CLIENT, detailedLogs? Level.ALL : Level.WARNING);
logs.enable(LogType.DRIVER, detailedLogs? Level.ALL : Level.WARNING);
logs.enable(LogType.PERFORMANCE, detailedLogs? Level.ALL : Level.WARNING);
logs.enable(LogType.PROFILER, detailedLogs? Level.ALL : Level.WARNING);
logs.enable(LogType.SERVER, detailedLogs? Level.ALL : Level.WARNING);
//LEGACY: DesiredCapabilities desiredCapabilities = DesiredCapabilities.firefox();
//desiredCapabilities.setCapability(CapabilityType.LOGGING_PREFS, logs);
options.setCapability(CapabilityType.LOGGING_PREFS, logs);
options.addPreference("extensions.logging.enabled", false);
options.addPreference("marionette.log.level", detailedLogs?"trace":"warn");
options.addPreference("marionette.logging", detailedLogs); // from https://github.com/mozilla/geckodriver/issues/89
// ----------- END NIGHTMARISH AMOUNT OF CODE TO SET THE LOG LEVEL ------------
driver = new FirefoxDriver(options);
来源：https://stackoverflow.com/questions/37803781/disable-log-trace-in-marionette-driver